초록 ▼

A method of compensating for torque variations resulting from camshaft motion in a variable camshaft timing system by adjusting the intake manifold mass air flow as a function of the camshaft schedule. The adjustment can be made using the air bypass valve, or by modifying the throttle command to an

A method of compensating for torque variations resulting from camshaft motion in a variable camshaft timing system by adjusting the intake manifold mass air flow as a function of the camshaft schedule. The adjustment can be made using the air bypass valve, or by modifying the throttle command to an electronically controlled throttle if the vehicle is so equipped.

대표청구항 ▼

A control method of compensating air charge variation in an engine caused by camshaft transients produced by a variable camshaft timing mechanism comprising a sequence of the following steps: calculating an air charge compensation value based on a cam schedule and engine operating conditions; adjust

A control method of compensating air charge variation in an engine caused by camshaft transients produced by a variable camshaft timing mechanism comprising a sequence of the following steps: calculating an air charge compensation value based on a cam schedule and engine operating conditions; adjusting the intake manifold mass air flow as a function of said compensation value to thereby reduce said variation.